Hach Ultra MET ONE 227, User Manual

Page: 9 / 59

8
General Information
2.1.3 Laser safety information
This particle counter contains a laser-based sensor that is a Class 1 product (as defined
by 21 CFR, Subchapter J, of the Health and Safety Act of 1968) when used under normal
operation and maintenance. The manual contains no procedures for service of internal
parts within this unit. Only factory-authorized personnel must perform the service.
The particle counter has been evaluated and tested in accordance with EN
61010-1:1993, "Safety Requirements For Electrical Equipment For Measurement, Control
and Laboratory Use" and IEC 825-1:1993, "Safety of Laser Products".
2.1.4 Battery safety information
WARNING
An explosion can occur if the internal battery is replaced incorrectly.
Figure 1 shows the label that appears on the battery for the safety of the user.
2.1.5 Electrostatic discharge (ESD) considerations
Important Note: To minimize hazards and ESD risks, maintenance procedures not
requiring power to the analyzer should be performed with power removed.
Delicate internal electronic components can be damaged by static electricity, resulting in
degraded instrument performance or eventual failure.
The manufacturer recommends the user to take the following steps to prevent ESD
damage to the instrument:
• Before the user touches any instrument electronic components (such as printed circuit
cards and the components on them) discharge static electricity. This can be
accomplished by touching an earth-grounded metal surface such as the chassis of an
instrument or a metal conduit or pipe.
• To reduce static build-up, avoid excessive movement. Transport static-sensitive
components in anti-static containers or packaging.
• To discharge static electricity and keep it discharged, wear a wrist strap connected by
a wire to earth ground.
• Handle all static-sensitive components in a static-safe area. If possible, use anti-static
floor pads and work bench pads.
Figure 1 Battery safety label